Alert archive / Delaware / Special Weather Statements in 2021

Special Weather Statement, NWS Philadelphia/Mount Holly

May 8, 2021Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this special weather statement at May 8, 2021, 4:15 PM EDT for Sussex County, Delaware. It was in force for 30 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 8, 2021, 4:15 PM EDT (20:15 UTC)
Expired: May 8, 2021, 4:45 PM EDT
In force: 30 min
Issued by: NWS Philadelphia/Mount Holly

County Sussex County, DE

The radar

The Dover AFB radar (KDOX), 11 km from the middle of the area, began a volume at 20:16 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
May 8, 4:29 PM EDT	MARINE TSTM WIND 44	1 Ene Lewes, DE
May 8, 4:30 PM EDT	MARINE TSTM WIND 48	1 Ene Lewes, DE

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 8.3 hours before the alert went out and 102 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1134 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 47 m²/s²
0-3 km storm-relative helicity: 47 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

404 
WWUS81 KPHI 082015
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
415 PM EDT Sat May 8 2021

DEZ003-004-082045-
Inland Sussex-Delaware Beaches-
415 PM EDT Sat May 8 2021

...A SHOWER WILL AFFECT NORTHEASTERN SUSSEX COUNTY...

At 414 PM EDT, a shower was located near Milton, or 11 miles north of
Georgetown, moving southeast at 25 mph.

Wind gusts up to 40 mph and pea size hail are possible with this
shower.

Locations impacted include...
Milford, Lewes, Milton, Ellendale, Henlopen Acres and Cape Henlopen
State Park.

If outdoors, consider seeking shelter inside a building.

LAT...LON 3882 7552 3895 7536 3895 7532 3896 7531
      3881 7498 3859 7522
TIME...MOT...LOC 2014Z 307DEG 23KT 3884 7532 

$$

SFJ

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 8, 11:22 AM EDT	Special Weather Statement	PHI	Monmouth	38 min
May 8, 1:12 PM EDT	Special Weather Statement	PHI	Monmouth	33 min
May 8, 1:15 PM EDT	Areal Flood Advisory	PHI	Middlesex, Monmouth	58 min
May 8, 1:45 PM EDT	Special Weather Statement	PHI	Ocean	15 min
May 8, 2:01 PM EDT	Special Weather Statement	PHI	Ocean	14 min
May 8, 2:34 PM EDT	Small Craft Advisory	PHI		7 hr
May 8, 2:42 PM EDT	Special Weather Statement	PHI	Middlesex, Monmouth, Morris	48 min
May 8, 2:47 PM EDT	Special Marine Warning	PHI		31 min
May 8, 3:04 PM EDT	Special Weather Statement	PHI	Salem	26 min
May 8, 3:23 PM EDT	Special Weather Statement	PHI	Salem	37 min
May 8, 3:43 PM EDT	Special Marine Warning	PHI		62 min
May 8, 3:46 PM EDT	Special Weather Statement	PHI	Somerset	29 min
May 8, 3:53 PM EDT	Special Marine Warning	PHI		56 min
May 8, 4:01 PM EDT	Special Marine Warning	PHI		48 min
May 8, 4:16 PM EDT	Special Weather Statement	PHI	Cumberland	29 min
May 8, 4:21 PM EDT	Special Weather Statement	PHI	Hunterdon, Middlesex, Somerset	24 min
May 8, 4:28 PM EDT	Special Marine Warning	PHI		62 min
May 8, 4:46 PM EDT	Special Weather Statement	PHI	Hunterdon, Mercer, Middlesex, Somerset	29 min
May 8, 5:22 PM EDT	Special Marine Warning	PHI		53 min
May 8, 3:39 PM EDT	Special Weather Statement	PHI	Kent	36 min
May 8, 3:54 PM EDT	Special Weather Statement	PHI	Sussex	36 min
May 8, 4:33 PM EDT	Special Weather Statement	PHI	Sussex	27 min
May 8, 5:56 PM EDT	Special Weather Statement	PHI	Kent	34 min
May 8, 3:21 PM EDT	Special Weather Statement	PHI	Queen Anne's	24 min
May 8, 3:50 PM EDT	Special Weather Statement	PHI	Caroline	25 min
May 8, 4:06 PM EDT	Special Weather Statement	PHI	Caroline	24 min
May 8, 6:47 PM EDT	Special Weather Statement	PHI	Caroline	28 min

Nearby

Special Weather Statements in Delaware, 2021 Every special weather statement in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.